31120023101012 has 12 divisors (see below), whose sum is σ = 54875765927136. Its totient is φ = 15441232836120.

The previous prime is 31120023100979. The next prime is 31120023101039. The reversal of 31120023101012 is 21010132002113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29694678008 + ... + 29694679055.

It is an arithmetic number, because the mean of its divisors is an integer number (4572980493928).

Almost surely, 2^{31120023101012} is an apocalyptic number.

It is an amenable number.

31120023101012 is a deficient number, since it is larger than the sum of its proper divisors (23755742826124).

31120023101012 is a wasteful number, since it uses less digits than its factorization.

31120023101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59389357198 (or 59389357196 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31120023101012 its reverse (21010132002113), we get a palindrome (52130155103125).

The spelling of 31120023101012 in words is "thirty-one trillion, one hundred twenty billion, twenty-three million, one hundred one thousand, twelve".